Top panel retainer



FIG. 1 is a perspective view of a top panel retainer according to the invention;

FIG. 2 is a side elevational view of a top panel retainer according to the invention; and

FIG. 3 is top perspective view of the end portion of a top panel retainer according to the invention, with the other end portion being identical thereto; and,

FIG. 4 is a bottom plan view of the end portion of a top panel retainer according to the invention, with the other end portion being identical thereto.

The article shown broken away to show indeterminate length. 

The ornamental design for a top panel retainer, as shown and described. 